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Publication numberUS547645 A
Publication typeGrant
Publication dateOct 8, 1895
Publication numberUS 547645 A, US 547645A, US-A-547645, US547645 A, US547645A
InventorsJoseph Lacroix
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pneumatic sole and heel
US 547645 A
Abstract  available in
Images(1)
Previous page
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)

J. LAGROIX.

PNEUMATIC SOLE AND HEEL.

Patented 001:. 8;, 1895.

' mueu to z; 7556 hlfiwl'azr/ WWI wows: (flaw/WW4 0 2/4 NAM. PNUTU-LHHQWASHINBTOKQC UNITED STATES PATENT OFFICE.

JOSEPH LAGROIX, OF FALL RIVER, MASSACHUSETTS.

PNEUMATIC sore AND HEEL...

SPECIFICATION forming partof Letters Patent No. 547,645, dated October 8, 1895. Application fileciiiuly 18,1895. Srla11iio|556,486. (iiomoiem To all whom it may concern;

Be it known that I, JOSEPH LAOROIX, a citizen of the United States, and a resident of Fall River, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Pneumatic Soles and Heels, and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to improvements in rubber and leather soles and heels for boots and shoes, and its object is to provide such a sole and heel which shall possess superior advantages with respect to efiiciency and comfort in use.

The invention consists in the novel con-. struction and combination of parts hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a central longitudinal section of a sole and heel constructed in accordance with my invention. Fig. 2 is a horizontal sectional view. Fig. 3 is a cross-section on the line mm, Fig. 1.

In the said drawings the reference-numeral 1 designates the outer part of the sole, 2 the shank portion, and 3 the heel, all made of vulcanized rubber in one piece.

The numeral 4 designates the inner part of the sole, made of leather, covered on its upper face with rubber and recessed on its under side from near the point to the shank and provided with a covering 5, of thin leather, forming an air-chamber 6. The rubber sole is connected to this leather sole and to the covering 5, and the combined sole thus formed is secured to the upper of a boot or shoe in anyordinary or convenient manner.

Located in the shank of sole 4 is a passage 7, which communicates with the air-chamber, and which communicates at its rear end with a pipe 8, provided with an automatic valve 9.

In practice the air-chamber has air forced therein by means of a pneumatic pump connected with the pipe 8. After sufficient pressure has been obtained the pump is'disconnected, when the valve will be closed by the back-pressure, thereby preventing leakage. It will thus be seen that an air-cushion will be formed between the outer and inner portions of the sole, whereby walking will be rendered more comfortable. The invention will be found to be especially Valuable to persons who are compelled to be on their feet much, as it is more springy than the ordinary soles, as it will rest the feet when standing still, and in walking or running will be less tiresome. It will also be of great use to persons with sore or sensitive feet, and also to invalids or sick people. It can be applied to any kind of foot-wear. Having thus fully described my invention, what I claim iS- As an improved article, a combined rubber and leather inflatable sole and heel, consisting of the leather portion recessed at the front and heel and formed with a horizontal connecting passage, the covering secured to the under side of said leather portion, the rubber sole and heel secured thereto, the rubber insole, and the inflation valve communicating with the recess in the heel, substantially as described.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

' JOSEPH LAOROIX.

Witnesses:

J OHN OoUeHLIN, JosnPH RENAULT.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3785069 *Jul 12, 1972Jan 15, 1974Brown JFootwear
US4020569 *Aug 11, 1975May 3, 1977Tatsuo FukuokaSole of a footwear
US4237625 *Sep 18, 1978Dec 9, 1980Cole George SThrust producing shoe sole and heel
US4358902 *Apr 2, 1980Nov 16, 1982Cole George SThrust producing shoe sole and heel
US4577417 *Apr 27, 1984Mar 25, 1986Energaire CorporationSole-and-heel structure having premolded bulges
US4799319 *Jun 16, 1987Jan 24, 1989Max ZellwegerDevice for warming the foot of a wearer
US5113599 *Sep 27, 1990May 19, 1992Reebok International Ltd.Athletic shoe having inflatable bladder
US5678328 *Nov 30, 1995Oct 21, 1997Energaire CorporationHeel and sole structure with opposite cavities
US5842291 *Oct 26, 1995Dec 1, 1998Energaire CorporationThrust producing multiple channel-multiple chamber shoe and bladder
US5987779 *Apr 17, 1996Nov 23, 1999Reebok International Ltd.Athletic shoe having inflatable bladder
US6092309 *Mar 22, 1999Jul 25, 2000Energaire CorporationHeel and sole structure with inwardly projecting bulges
US6158149 *Feb 16, 2000Dec 12, 2000Robert C. BogertArticle of footwear having multiple fluid containing members
US6457263Oct 16, 2000Oct 1, 2002Marion Franklin RudyArticle of footwear having multiple fluid containing members
US6722059Oct 25, 2001Apr 20, 2004Acushnet CompanyDynamic and static cushioning footbed
US6785985Jul 2, 2002Sep 7, 2004Reebok International Ltd.Shoe having an inflatable bladder
US6988329Mar 4, 2005Jan 24, 2006Reebok International Ltd.Shoe having an inflatable bladder
US7047670Jul 2, 2003May 23, 2006Reebok International Ltd.Shoe having an inflatable bladder
US7080467Jun 27, 2003Jul 25, 2006Reebok International Ltd.Cushioning sole for an article of footwear
US7152625May 24, 2004Dec 26, 2006Reebok International Ltd.Combination check valve and release valve
US7278445Jul 12, 2004Oct 9, 2007Reebok International Ltd.Shoe having an inflatable bladder
US7337560Oct 28, 2005Mar 4, 2008Reebok International Ltd.Shoe having an inflatable bladder
US7340851Mar 29, 2006Mar 11, 2008Reebok International Ltd.Shoe having an inflatable bladder
US7353625Nov 2, 2004Apr 8, 2008Reebok International, Ltd.Resilient cushioning device for the heel portion of a sole
US7383648Feb 23, 2005Jun 10, 2008Reebok International Ltd.Inflatable support system for an article of footwear
US7448150Feb 28, 2005Nov 11, 2008Reebok International Ltd.Insert with variable cushioning and support and article of footwear containing same
US7513067Jan 12, 2006Apr 7, 2009Reebok International Ltd.Shoe having an inflatable bladder
US7600331May 19, 2008Oct 13, 2009Reebok International Ltd.Inflatable support system for an article of footwear
US7622014Jul 1, 2005Nov 24, 2009Reebok International Ltd.Method for manufacturing inflatable footwear or bladders for use in inflatable articles
US7694438Dec 13, 2006Apr 13, 2010Reebok International Ltd.Article of footwear having an adjustable ride
US7721465Jan 4, 2008May 25, 2010Reebok International Ltd.Shoe having an inflatable bladder
US7735241Jan 11, 2006Jun 15, 2010Reebok International, Ltd.Shoe having an inflatable bladder
US7784196Dec 13, 2006Aug 31, 2010Reebok International Ltd.Article of footwear having an inflatable ground engaging surface
US7930839Oct 7, 2009Apr 26, 2011Reebok International Ltd.Inflatable support system for an article of footwear
US7934521Dec 20, 2006May 3, 2011Reebok International, Ltd.Configurable fluid transfer manifold for inflatable footwear
US8037623Jun 29, 2006Oct 18, 2011Nike, Inc.Article of footwear incorporating a fluid system
US8151489Apr 9, 2010Apr 10, 2012Reebok International Ltd.Shoe having an inflatable bladder
US8230874Oct 7, 2008Jul 31, 2012Reebok International LimitedConfigurable fluid transfer manifold for inflatable footwear
US8256141Apr 7, 2009Sep 4, 2012Reebok International LimitedArticle of footwear having an adjustable ride
US8414275Jan 11, 2007Apr 9, 2013Reebok International LimitedPump and valve combination for an article of footwear incorporating an inflatable bladder
US8540838Nov 23, 2009Sep 24, 2013Reebok International LimitedMethod for manufacturing inflatable footwear or bladders for use in inflatable articles
US8572786Oct 12, 2010Nov 5, 2013Reebok International LimitedMethod for manufacturing inflatable bladders for use in footwear and other articles of manufacture
US8677652Mar 9, 2012Mar 25, 2014Reebok International Ltd.Shoe having an inflatable bladder
USRE34102 *May 14, 1991Oct 20, 1992Energaire CorporationThrust producing shoe sole and heel
Classifications
Cooperative ClassificationA43B13/20